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參數(shù)資料
| 型號(hào)： | AN8807SB |
| 廠商： | PANASONIC CORP |
| 元件分類： | 音頻／視頻放大 |
| 英文描述： | Three-Beam Method Head Amplifier IC for CD-ROM |
| 中文描述： | 1 CHANNEL, AUDIO AMPLIFIER, PDSO36 |
| 封裝： | 0.450 INCH, PLASTIC, SSOP-36 |
| 文件頁數(shù)： | 8/10頁 |
| 文件大小： | 90K |
| 代理商： | AN8807SB |
AN8807SB
ICs for CD-ROM Player
Pin31, and 32 are used to make the resistance converting the current to voltage variable. When these pins are directly connected
to V
REF
and 20k
of resistance is connected between TE and TE–, and between TE and TEOUT respectively, equivalent
resistance to TEOUT is 629k
.
AGC
In order to absorb the attenuation of RF signal by disk, pick-up dispersion, finger print and other factors, AGC circuit for RF is
incorporated.
The input impedance of Pin8 is approx. 27.9k
. By Pin10 (ARF), the gain-controlled RF-signal is outputted. Input allowable
level is approx. 1V
P–P
~ 500mV
P–P
~ 250mV
P–P
, and output is 1V
P–P
. Pin9 is a connecting pin with capacity for constructing the
AGC loop filter. It is recommended that the external capacitor of 1
μ
F around should be connected to it for V
CC
.
Table 2
The VCBA is for tracking balance adjustment in the same way of for focus. Table 2 shows the tracking balance ratio under the
same conditions as shown in Table 1.
V
C
1.5V
2.5V
3.5V
E/F
0.14
1.0
7.0
F/E
7.0
1.0
0.14
Figure 4 : AGC
9
10
8
ARF
AGC
RF
1
μ
F
V
CC
RFDET
The RFDET detects amplitude of RF signal inputted to Pin8. Threshold value is approx. 100mV (f=500kHz), and RF
Present=L, RF Absent=H are outputted.
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| AN8808SB | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:Three-Beam Method Head Amplifier IC for CD supporting the hologram pick-up |
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| AN8812K | 制造商:Panasonic Industrial Company 功能描述:IC |
| AN8812NK | 制造商:Panasonic Industrial Company 功能描述:IC |
| AN8812SC | 制造商:PANASONIC 制造商全稱:Panasonic Semiconductor 功能描述:4 CH LINEAR DRIVER IC FOR CD/CD-ROM |
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